Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/ImportRange.java @ 8856:5e38e2924c07 3.2.x

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Fix code style.
author Tom Gottfried <tom@intevation.de>
date Thu, 18 Jan 2018 20:12:01 +0100
parents 17db08570637
children e541938dd3ab 0a5239a1e46e
rev   line source
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parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.importer;
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10
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11 import org.dive4elements.river.model.Range;
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12 import org.dive4elements.river.model.River;
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13
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14 import java.math.BigDecimal;
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15
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16 import org.apache.log4j.Logger;
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17
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18 /** A range that is about to be imported. */
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19 public class ImportRange
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20 implements Comparable<ImportRange>
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21 {
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22 /** Private log. */
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23 private static Logger log = Logger.getLogger(ImportRange.class);
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24
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25 protected BigDecimal a;
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26 protected BigDecimal b;
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27
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28 protected Range peer;
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29
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30 public ImportRange() {
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31 }
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32
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33 public ImportRange(BigDecimal a) {
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34 this.a = a;
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35 this.b = null;
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36 }
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37
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38 public ImportRange(BigDecimal a, BigDecimal b) {
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39
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40 // enforce a<b and set only a for zero-length ranges
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41 if (a != null && b == null) {
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42 this.a = a;
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43 this.b = null;
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44 }
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45 else if (a == null && b != null) {
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46 this.a = b;
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47 this.b = null;
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48 }
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49 else if (a == null && b == null) {
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50 throw new IllegalArgumentException("Both a and b are null.");
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51 }
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52 else if (a == b) {
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53 this.a = a;
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54 this.b = null;
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55 }
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56 else {
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57 if (a.compareTo(b) > 0) {
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58 BigDecimal t = a; a = b; b = t;
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59 }
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60 this.a = a;
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61 this.b = b;
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62 }
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63 }
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64
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65 private static final int compare(BigDecimal a, BigDecimal b) {
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66 if (a == null && b == null) {
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67 return 0;
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68 }
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69 if (a == null && b != null) {
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70 return -1;
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71 }
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72 if (a != null && b == null) {
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73 return +1;
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74 }
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75 return a.compareTo(b);
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76 }
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77
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78 public int compareTo(ImportRange other) {
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79 int cmp = compare(a, other.a);
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80 if (cmp != 0) return cmp;
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81 return compare(b, other.b);
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82 }
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83
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84 public BigDecimal getA() {
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85 return a;
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86 }
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87
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88 public void setA(BigDecimal a) {
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89 if (this.b != null && a.compareTo(b) >= 0) {
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90 throw new IllegalArgumentException(
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91 "a (" + a + ") must be smaller than b (" + b + ").");
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92 }
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93 this.a = a;
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94 }
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95
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96 public BigDecimal getB() {
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97 return b;
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98 }
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99
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100 public void setB(BigDecimal b) {
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101 if (b != null && b.compareTo(a) <= 0) {
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102 throw new IllegalArgumentException(
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103 "b (" + b + ") must be greater than a (" + a + ") or null.");
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104 }
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105 this.b = b;
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106 }
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107
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108 public Range getPeer(River river) {
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109 if (peer == null) {
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110 peer = ImporterSession.getInstance().getRange(river, a, b);
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111 }
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112 return peer;
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113 }
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114 }
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115 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org